In Nicaragua, the metric system was adopted in 1910, and has been compulsory since 1912, by a joint convention between Costa Rica, Guatemala, Honduras, Nicaragua and El Salvador.
[1][2] Before the metric system, a number of modified Spanish (i.e. Spanish Castilian[2]), English and local units were used.
[1] Several units were used to measure mass in the above five countries.
One manzana was equal to 10,000 square varas or 6987.4 m2.
[1][2] Several units were used to measure volume in these countries.